Paul Chang 1 Posted October 27, 2020 Share Posted October 27, 2020 (edited) Dear Sir, 1.Do you have arbitrary waveform generator's harmonic and phase noise spec ?(Are you using sine wave for measurement?) 2.If Logic Analyzer uses state mode(external clock), what is its maximum state clock rate? Best Regards Paul Edited October 28, 2020 by Paul Chang Link to post Share on other sites
0 attila 498 Posted October 28, 2020 Share Posted October 28, 2020 Hi @Paul Chang You can find a detailed reference manual here:https://reference.digilentinc.com/reference/instrumentation/analog-discovery-2/reference-manual 1. I don't see in the manual harmonic/phase specs, but the AD2 with BNC loopback looks like this: 2. For external clocking in Logic Analyzer the Sync mode can be used. Note that the trigger is not available in this mode. The external signal are resampled at internal 100MHz, so theoretical maximum is 50MHz, with either edge 100MHz. The achievable depends on the driver circuit, probably up to 10-30MHz. For larger captures than the device buffer (4-16k) the rate is limited by streaming data over USB, to about 1-5MSps Link to post Share on other sites
0 Paul Chang 1 Posted October 30, 2020 Author Share Posted October 30, 2020 Hi @attila Thanks for your support. 1. Do you have its jitter spec? 2.Could you tell me what's the driver circuit? Does it mean more current? Because the nyquist theorem then the external clock is better in 10Mhz~30Mhz. Best Regards Paul Link to post Share on other sites
0 attila 498 Posted November 2, 2020 Share Posted November 2, 2020 Hi @Paul Chang 1. No 2. Yes, drive strength, slew rate Link to post Share on other sites
0 Paul Chang 1 Posted November 24, 2020 Author Share Posted November 24, 2020 @attila Thanks for your support. attila 1 Link to post Share on other sites
Question
Paul Chang 1
Dear Sir,
1.Do you have arbitrary waveform generator's harmonic and phase noise spec ?(Are you using sine wave for measurement?)
2.If Logic Analyzer uses state mode(external clock), what is its maximum state clock rate?
Best Regards
Paul
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